叙述汽车空调的制冷循环过程。
不属于特种文献的有（）。 ["科技报告","学位论文","专利文献","专著"]
脚手架必须设置纵、横向扫地杆，纵向扫地杆应采用直角扣件固定在距底座上皮不大于（）mb处的立杆上。 ["120","200","220","250"]
原状地基为岩石或坚硬土层时，管道下方应铺设砂垫层，对于小于等于500mm的柔性管道，其厚度应大于（）mm。 ["50","100","150","200"]
You have 100 segments in the USERS tablespace. You realize that the USERS tablespace is running low on space. You can use Segment Advisor to（）. ["add data files to the tablespace ","identify the segments that you should shrink ","modify the storage parameters for the tablespace ","automatically shrink the segments with unused space ","check the alerts generated for the tablespace that is running low on space"]
在霍哲看来，一个设计合理的绩效评估系统应该包括哪些基本环节？
